/*
 * Copyright 2006 Matt Jensen
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package org.spectaql.internal.query;

import java.util.Arrays;

/**
 * <p>
 * <code>AbstractMultipleValueConstraint</code> is a common base for all equality constraints which compare their
 * targets to zero or more values.
 * </p>
 * <p>
 * <strong>Thread Safety:</strong> Instances of this class are thread safe.
 * </p>
 */
public class AbstractMultipleValueConstraint<T> implements Constraint
{
    /**
     * <p>
     * The constraint values. 
     * </p>
     */
    private final T[] m_values;

    /**
     * <p>
     * Construct a {@link AbstractMultipleValueConstraint} instance.
     * </p>
     *
     * @param values the constraint values.
     */
    public AbstractMultipleValueConstraint(final T... values)
    {
        super();

        m_values = values;
    }

    /**
     * <p>
     * Get the constraint values.
     * </p>
     *
     * @return Array of {@link Object} values.
     */
    public T[] getValues()
    {
        return m_values;
    }

    /* inherit javadoc */
    @Override
    public String toString()
    {
        return String.format("%s[values=%s]", getClass().getName(), Arrays.deepToString(getValues()));
    }
}
